Manufacturers
SEMTECH SC2672
Description
Semtech SC2672 Dual Synchronous Voltage-Mode Controller
Part Number
SC2672
Price
Request Quote
Manufacturer
SEMTECH
Lead Time
Request Quote
Category
PRODUCTS - S
Specifications
Iout Max
12
Operating Frequency
300 kHz
Package
SOIC-16
Vin(V) max
15
Vin(V) min
3
Vout Min
.9
Features
- 2 phases operating opposed for ripple reduction (if same VIN used)
- 300 kHz operating frequency
- Bias voltage as low as 4.5 V
- Flexible, same or separate VIN
- High efficiency operation, > 90%
- Independent and separate output UVLO
- Independent control for each channel
- Industrial temperature range
- Phase-shifted switchers minimize ripple
- Power-good output provided
- Programmable output(s) as low as 0.9 V
- Soft start
- SOIC-16 package
- Two Independent PWM Controllers
- Under-voltage current limit
Datasheet
Extracted Text
SC2672
Dual Synchronous
Voltage Mode Controller
POWER MANAGEMENT
Features
Description
The SC2672 is a versatile 2 phase, synchronous, volt-
300kHz operating frequency
age mode PWM controller that may be used in two dis-
Soft Start
tinct ways. The SC2672 is ideal for dual voltage inde-
Power Good output provided
pendent applications. The SC2672 features a tempera-
Undervoltage current limit
ture compensated voltage reference, an undervoltage
Phase-shifted switchers minimize ripple
lockout over current protection and internal level-shifted,
High efficiency operation, >90%
high-side drive circuitry.
Programmable output(s) as low as .9V
Industrial temperature range
In dual switcher configuration, two feedback paths are
SOIC-16 pin package
provided for independent control of the separate out-
Bias voltage as low as 4.5V
puts. The device will provide a regulated output from
flexibly configured inputs (3.3V, 5V, 12V), provided 5V is
Two Independent PWM Controllers
present for V . The two switchers are 180° out of phase
CC
Flexible, same or separate V
IN
to minimize input and output ripple.
Independent control for each channel
Independent and separate output UVLO
2 phases operating opposed for ripple reduction
(if same V used)
IN
Applications
Graphics cards
Peripheral add-in card
Power supplies requiring two outputs
Typical Application Schematic
Revision: July 15, 2004 1
www.semtech.com
SC2672
POWER MANAGEMENT
Absolute Maximum Rating
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied.
Pl arameter Ss ymbo Ls imit Unit
VtV o GND -V 0.3 to 15
CC IN
PGND to GND ±V 1
BST to GND -V 0.3 to 26
Thermal Resistance Junction to Case 4W 0 °C/
θ
JC
Thermal Resistance Junction to Ambient θ 1C 20 °W /
JA
Oe peratingAT mbient Temperature Rang -C 40 to +85 °
A
Oe peratingJT unction Temperature Rang -C 40 to +125 °
J
ST torage Temperature Range -C 65 to +150 °
STG
LT ead Temperature (Soldering) 10 sec 3C 00 °
LEAD
Electrical Characteristics
Unless Specified: V = 5 ± 0.25V, V = 12 ± 0.6V, GND = PGND = 0V, FB = V , 0mV < (CS(+) - (CS(-)) < 60mV , T = 25°C.
CC BST O J
Values in bold indicate -40°C ≤ T ≤ +125°C
J
PS ARAMETER CN ONDITION MP I TX YMS A UNIT
(1)
OI utput Voltage = 2A , Vs5 et to 2.75V 25 .6 25 .7 2V .8
O OUT
SV upply Voltage 351V
CC
SV upply Current =0 5.0 1A m
CC
Reference .9 89 .1 .9
V
.4 886 .91
(1)
LI oad Regulation = 0.3A to 15A 1%
O
RV eference Line Regulation 5
Frequently asked questions
What makes Elite.Parts unique?
What kind of warranty will the SC2672 have?
Which carriers does Elite.Parts work with?
Will Elite.Parts sell to me even though I live outside the USA?
I have a preferred payment method. Will Elite.Parts accept it?
Why buy from GID?
Quality
We are industry veterans who take pride in our work
Protection
Avoid the dangers of risky trading in the gray market
Access
Our network of suppliers is ready and at your disposal
Savings
Maintain legacy systems to prevent costly downtime
Speed
Time is of the essence, and we are respectful of yours
Related Products
Request a Quote
The quote request has been received
Close
Facing challenges or have inquiries? Feel free to contact us!
Call Us +1-469-283-2440
What they say about us
FANTASTIC RESOURCE
One of our top priorities is maintaining our business with precision, and we are constantly looking for affiliates that can help us achieve our goal. With the aid of GID Industrial, our obsolete product management has never been more efficient. They have been a great resource to our company, and have quickly become a go-to supplier on our list!
Bucher Emhart Glass
EXCELLENT SERVICE
With our strict fundamentals and high expectations, we were surprised when we came across GID Industrial and their competitive pricing. When we approached them with our issue, they were incredibly confident in being able to provide us with a seamless solution at the best price for us. GID Industrial quickly understood our needs and provided us with excellent service, as well as fully tested product to ensure what we received would be the right fit for our company.
Fuji
HARD TO FIND A BETTER PROVIDER
Our company provides services to aid in the manufacture of technological products, such as semiconductors and flat panel displays, and often searching for distributors of obsolete product we require can waste time and money. Finding GID Industrial proved to be a great asset to our company, with cost effective solutions and superior knowledge on all of their materials, it’d be hard to find a better provider of obsolete or hard to find products.
Applied Materials
CONSISTENTLY DELIVERS QUALITY SOLUTIONS
Over the years, the equipment used in our company becomes discontinued, but they’re still of great use to us and our customers. Once these products are no longer available through the manufacturer, finding a reliable, quick supplier is a necessity, and luckily for us, GID Industrial has provided the most trustworthy, quality solutions to our obsolete component needs.
Nidec Vamco
TERRIFIC RESOURCE
This company has been a terrific help to us (I work for Trican Well Service) in sourcing the Micron Ram Memory we needed for our Siemens computers. Great service! And great pricing! I know when the product is shipping and when it will arrive, all the way through the ordering process.
Trican Well Service
GO TO SOURCE
When I can't find an obsolete part, I first call GID and they'll come up with my parts every time. Great customer service and follow up as well. Scott emails me from time to time to touch base and see if we're having trouble finding something.....which is often with our 25 yr old equipment.
ConAgra Foods